Validity and Reliability of the Persian Version of the CONTILIFE Questionnaire for Urinary Incontinence

Mohammadpour A1, Salehi-Pourmehr H2, Hajebrahimi S2, Amiri E2, Tayebi S3, Fakhraie S1, Hatami A1, Jabraeili-Siahroud S1, Mostafaei H1

Research Type

Clinical

Abstract Category

Quality of Life / Patient and Caregiver Experiences

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Abstract 66
Conservative 2 - Patient and Clinician's Experience of Education and Intervention
Scientific Podium Short Oral Session 6
Thursday 18th September 2025
11:37 - 11:45
Room A3
Stress Urinary Incontinence Quality of Life (QoL) Questionnaire
1. Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran., 2. Research Center for Evidence-Based Medicine, Iranian EBM Centre: A JBI Centre of Excellence, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran., 3. Iran University of Medical Sciences, Tehran, Iran.
Presenter
S

Sakineh Hajebrahimi
Research Center for Evidence-Based Medicine, Iranian EBM Centre: A JBI Centre of Excellence, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Links

Abstract

Hypothesis / aims of study 
Stress urinary incontinence (SUI) significantly impacts quality of life. The CONTILIFE questionnaire is a specific tool to measure this impact. This study aimed to culturally adapt the CONTILIFE questionnaire into Persian and determine its psychometric properties (validity and reliability) in Iranian women with urinary incontinence.
Study design, materials and methods 
This methodological study involved the cultural adaptation and psychometric evaluation of the CONTILIFE questionnaire. The original English version was translated into Persian using the forward-backward translation method. Two hundred and fifty-five women with symptoms of SUI participated and completed the Persian CONTILIFE. Content validity was assessed using the Content Validity Index (CVI) and Content Validity Ratio (CVR) based on expert review of the questionnaire's content, clarity, and simplicity. Test-retest reliability was determined by calculating the Intraclass Correlation Coefficient (ICC). Internal consistency was assessed using Cronbach's alpha coefficient for each factor and the entire instrument.
Results 
The Persian version of CONTILIFE was reviewed and completed by 255 women with urinary incontinence (mean age 52.95 ± 0.81 years). The CVR was above the acceptable threshold of 0.62, and the CVI was above the acceptable threshold of 0.70, indicating good content validity. The ICC value for test-retest reliability was 0.952, demonstrating very high stability of the measurements over time. The Cronbach's alpha coefficient for the internal consistency of the entire questionnaire was 0.955, indicating excellent internal consistency and reliability.
Interpretation of results 
The Persian version of the CONTILIFE questionnaire demonstrates good content validity and excellent reliability, as evidenced by high ICC and Cronbach's alpha values in Iranian women with urinary incontinence. These findings suggest that the translated questionnaire accurately and consistently measures the impact of urinary incontinence on health-related quality of life in this population.
Concluding message 
The Persian version of the CONTILIFE questionnaire is a valid and reliable tool for assessing the impact of stress urinary incontinence on health-related quality of life in Iranian women. Its availability allows for culturally appropriate and psychometrically sound measurement of this important aspect of patient experience in clinical practice and research within Iran.
Disclosures
Funding None Clinical Trial No Subjects Human Ethics Committee Tabriz University of Medical Sciences Helsinki Yes Informed Consent Yes
Citation

Continence 15S (2025) 101990
DOI: 10.1016/j.cont.2025.101990

28/10/2025 21:05:09